FilterQBox.h

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#ifndef FILTER_QBOX_H
#define FILTER_QBOX_H

#include "QBox.h"
#include "Expression.h"

BOREALIS_NAMESPACE_BEGIN;

class FilterQBox : public QBox {
  friend class FilterBoxState;

private:
    EvalContext _ctxt;
    vector<ptr<Expression> > _expressions;

    bool _passOnFalsePort;
    unsigned int _output_tuple_size;

    unsigned int _expr_count; // _expressions.size()

protected:
    void setupImpl() throw (AuroraException);
    void initImpl() throw (AuroraException);
    void runImpl(QBoxInvocation&) throw (AuroraException);
        
    // packing and unpacking states 
    void setPendingBoxState(ptr<AbstractBoxState> packed_box);
    ptr<AbstractBoxState> packState();
    void unpackState(ptr<AbstractBoxState> box_state) {};

    AURORA_DECLARE_QBOX(FilterQBox, "filter");
};

class FilterBoxState : public AbstractBoxState
{
 public:
  FilterBoxState() {}
  ~FilterBoxState() {}

 private:

  
};

BOREALIS_NAMESPACE_END;

#endif

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